40330811 has 2 divisors, whose sum is σ = 40330812. Its totient is φ = 40330810.

The previous prime is 40330729. The next prime is 40330819. The reversal of 40330811 is 11803304.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40330811 - 2¹⁸ = 40068667 is a prime.

It is a Chen prime.

It is equal to p_2452610 and since 40330811 and 2452610 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (40330819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20165405 + 20165406.

It is an arithmetic number, because the mean of its divisors is an integer number (20165406).

Almost surely, 2^40330811 is an apocalyptic number.

40330811 is a deficient number, since it is larger than the sum of its proper divisors (1).

40330811 is an equidigital number, since it uses as much as digits as its factorization.

40330811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 40330811 is about 6350.6543757317. The cubic root of 40330811 is about 342.9354002332.

The spelling of 40330811 in words is "forty million, three hundred thirty thousand, eight hundred eleven".